7164L25TDB

Overview

The Renesas 7164L25TDB is a static random-access memory (SRAM) integrated circuit organized as 64Kb (8K x 8). It utilizes asynchronous parallel interface technology with a maximum access time of 25 ns. The device operates within a supply voltage range of 4.5V to 5.5V and supports an industrial temperature range of -40°C to +85°C. It is housed in a 28-pin ceramic dual in-line package (CDIP) designed for through-hole mounting.

Feature Summary

• Asynchronous parallel SRAM architecture providing fast data access without clock synchronization requirements
• Industrial-grade operational capability ensuring reliability across extended temperature environments
• Low-power standby mode functionality designed to reduce system power consumption during idle periods

Applications

• Industrial control systems requiring robust memory storage under varying thermal conditions
• Embedded applications utilizing asynchronous logic interfaces for data buffering
• Military or aerospace electronic assemblies necessitating ceramic packaging for environmental resilience

Procurement Notes

Verify component authenticity through authorized channels due to potential availability constraints. Confirm specific suffix designations match exact package and temperature grade requirements. Check for end-of-life notifications or product change notices affecting long-term supply stability. Ensure compatibility with existing board layouts regarding pin configurations and mounting standards.

Selection Notes

Select this component when a through-hole ceramic package is required for mechanical durability or high-temperature operation. Compare against surface-mount alternatives if space constraints exist, noting the physical size differences. Evaluate power consumption profiles against system battery backup capabilities if low-power standby features are critical for the application design.

Part Context

This part belongs to the IDT 7164L family of high-speed CMOS static RAMs. The series offers various speed grades and package options to suit different performance and form factor needs. Renesas Electronics acquired the IDT product line, maintaining these legacy components for continued use in specialized industrial and military markets.

Replacement Considerations

Consult official substitution lists for equivalent parts with matching speed, organization, and package dimensions. Verify that any alternative maintains the same voltage specifications and temperature ratings. Cross-reference pinouts to ensure direct compatibility without circuit modification.